What is "daimonoioannes"

Daimonoioannes or Eudaimonoioannes was the name of a noble Byzantine Greek family, or group of families, active in the 13th to 17th centuries. Particularly associated with Monemvasia, its members were also active in the wider Peloponnese, Kythira, and Crete, where they apparently moved en masse in the 16th century, following the Ottoman capture of Monemvasia.